Key Selection Information
| Selection Parameter | Confirmed Information |
|---|---|
| Manufacturer | onsemi |
| Exact MPN | MMBF4392LT1G |
| Product Category | JFETs |
| Package | SOT-23 |
| Packing | 3,000 pcs/reel |
| Gate-Source Cutoff Voltage (VGS(off)) | 2V |
| Gate-Source Breakdown Voltage (VGSS) | 30V |
| Power Dissipation (PD) | 225mW |
| On-Resistance (RDS(on)) | 60Ω |
Product Overview
MMBF4392LT1G is a onsemi device in the JFETs category, supplied in a SOT-23 package.
Verified selection data includes Gate-Source Cutoff Voltage (VGS(off)): 2V, Gate-Source Breakdown Voltage (VGSS): 30V, Power Dissipation (PD): 225mW, On-Resistance (RDS(on)): 60Ω.
Higher current capability and lower specified resistance than MMBF4393LT1G make it the intermediate-current selection in this family.
Technical Specifications
| Parameter | Verified Information |
|---|---|
| Manufacturer | onsemi |
| Exact MPN | MMBF4392LT1G |
| Functional Category | JFETs |
| Package | SOT-23 |
| Packing | 3,000 pcs/reel |
| Source Catalog ID | C259802 |
| Gate-Source Cutoff Voltage (VGS(off)) | 2V |
| Gate-Source Breakdown Voltage (VGSS) | 30V |
| Power Dissipation (PD) | 225mW |
| On-Resistance (RDS(on)) | 60Ω |
| Manufacturer Status | Active. |
Selection Notes
I_{DSS}; cutoff voltage; r_{DS(on)}; capacitance; qualification variant.
Match channel polarity, VGS(off), breakdown voltage, current range and dissipation to the analog switch or bias point.
Manufacturer Decision-Relevant Notes
V_{DS}, V_{DG}, V_{GS} max 30 V; I_{DSS} min 25 mA, max 75 mA at V_{DS}=15 V, V_{GS}=0; V_{GS(off)} min -2.0 V, max -5.0 V; V_{DS(on)} max 0.4 V at I_D=6 mA; r_{DS(on)} max 60 Ω at I_D=1 mA; C_{iss} max 14 pF; C_{rss} max 3.5 pF.
Design Considerations
- Verify the 25–75 mA I_{DSS} spread against bias networks; check negative gate-drive range through -5.0 V cutoff; budget 60 Ω at 1 mA; verify 30 V drain/gate/source limits during transients.
Application Fit
Analog switching, sample-and-hold, chopper-stabilized amplifiers.
Exact Variant and Procurement Notes
SOT-23 (TO-236), Pb-free, 3,000/tape-and-reel; standard, not the SMMBF automotive variant.
Manufacturer Resources
Quality & Verification Support
Third-party inspection or testing can be arranged according to customer requirements. Testing fees are borne by the buyer. Additional verification requirements can be discussed before shipment. Physical product, label, packaging, and Date Code photos may be provided where appropriate.
Request a Quote
For MMBF4392LT1G quotation, provide the exact MPN, required quantity, destination, target Date Code if applicable, and any inspection or testing requirements.
